What is CMOS battery
This battery allows the BIOS to maintain settings on the computer. These settings include recognizing hard drive settings�� USB on-board device settings and keeping your system clock on time. Usually�� the first visible sign that you need to replace the CMOS battery is that your laptop clock keeps losing time. A CMOS battery can last from three to five years.


Compatible with:

IBM THINKPAD R50E 

IBM P/N: 08K8050

FRU: 02K7078


Package : One pcs of Real Time Clock (RTC) CMOS Battery .